STIHL WSA 40 battery pressure water tank set with AS 2 battery and AL 1 charger

No on-site water supply, but you still need clean, wet cuts and less dust? The STIHL WSA 40 gives your cut-off saw a steady water feed anywhere, so you can work safely and efficiently on paving, landscaping or utility jobs.

This cordless 10 l pressure tank keeps the flow constant and cooling effective. With stepless pressure control and an LED status indicator, you stay in control throughout the job.

Where it excels

• Cutting concrete, brick or stone with reduced dust on sites without water
• Roadworks and landscaping where cooling the disc extends tool life
• Underground utilities and renovation tasks needing mobile water supply

Why you’ll like it

• Mobile and cordless: automatic, constant water feed
• Adjustable flow: stepless 1.5–2.5 bar pressure
• Work longer: 10 l tank with level indicator
• Built for pros: IPX4-certified pump head and LED

In daily use

• Rubber carry handle makes transport comfortable
• Auto shut-off helps save battery when idle or empty
• Standard hose coupling and 4 m hose for easy reach

Capacity and specs

• Tank capacity: 10 l
• Working pressure: 1.5–2.5 bar / 36 psi
• Min./Max. water flow: 2.8–3.2 l/min
• Nominal/Max voltage: 11 V / 12 V
• AS system; recommended battery: AS 2
• Sound pressure/power: 69.2 / 77.2 dB(A)
• Vibration right: 4.1 m/s²
• Dimensions (W x D x H): 218 x 260 x 745 mm
• Weight: 3.1 kg
• Max runtime with AS 2: up to 30 min; up to 12 tank fillings per charge

Advice from gardenmachineshop.com

Set the pressure just high enough to keep the disc wet and dust down—lower pressure reduces water use without sacrificing cooling.

Returns: as a consumer you can withdraw from your purchase within 14 days of receiving it, without giving a reason – this also applies to parts we order in specially for you. See our Refund & return policy for how to return an item and who pays the return shipping.